What kind of modifications does a Twin Otter have for -60 operations?

3 Answers

  • 4 years ago
    Favorite Answer

    None whatsoever -

    Other than "comfort items" for crew and passengers -

    All the anti-ice equipment is standard -

    The DHC-6 Twin Otter is certificated as per FAR 23 -

    This certification is airplanes of less than 12,500 lbs (5,700 kg) gross takeoff weight -

    Such airplanes can be flown commercially by FAR 135 commuter operators -

    Max passenger seating capacity 19 - Flight crew 1 or 2 pilots (see FAR 135 operating certificate) -

    The airplane is certificated for VFR or IFR flight -

    Temperature charts down to -54º C for operations -

    If at colder temperatures, use data for -54º C -

    Flight is approved into known icing conditions (in visible moisture below 0º C) -

    Only practical limitation would be minimum fuel temperature in tanks -

    Minimum Jet A-1 fuel temperature is -40º C

    Source(s): From the AFM of a DHC-6-400 -
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  • 4 years ago

    You probably need to put some skis on them so they can land and take off from there when there is snow

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  • Anonymous
    4 years ago

    I would suspect;

    - fuel heaters

    - extra cabin heat

    - skiis

    - windshield defrost

    - low temp deicing fluid or electric deicers

    - heated seats would be nice (not sure those are even offered though)

    - redundant navigation

    - satellite radio communication

    - special fuel additives

    I'm sure there is significantly more.

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